std::atan

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Defined in header `<cmath>`

float atan( float arg );

double atan( double arg );

long double atan( long double arg );

Computes arc tangent of arg

arg - floating point value

arc tangent of arg in radians in the range of [-π/2; π/2] radians.

arc tangent, using signs to determine quadrants
(function)

computes arc sine (

arcsin(x)

)
(function)

computes arc cosine (

arccos(x)

)
(function)

computes tangent (

tan(x)

)
(function)